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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /doc/dev/delayed-delete.rst | |
parent | Initial commit. (diff) | |
download | ceph-b26c4052f3542036551aa9dec9caa4226e456195.tar.xz ceph-b26c4052f3542036551aa9dec9caa4226e456195.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/dev/delayed-delete.rst')
-rw-r--r-- | doc/dev/delayed-delete.rst | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/dev/delayed-delete.rst b/doc/dev/delayed-delete.rst new file mode 100644 index 000000000..31f3e6b97 --- /dev/null +++ b/doc/dev/delayed-delete.rst @@ -0,0 +1,13 @@ +========================= + CephFS delayed deletion +========================= + +The deletion of a file does not immediately remove its data. Each of the file's +underlying objects must be removed independently. If these objects were removed +immediately, the client would have to send ``size_of_file / stripe_size * +replication_count`` messages. This would consume significant bandwith and would +slow the client unacceptably. If snapshots exist, their existence can prevent +the deletion of objects associated with them. + +In these cases, such files are (1) marked as deleted on the MDS and (2) deleted +lazily. |